DE602004008385T2 - Color filter substrate, process for its preparation, electro-optical device and electronic device - Google Patents

Description

The The present invention relates to a color filter substrate for use in liquid crystal devices and other such electro-optical devices, and Process for producing such a color filter substrate. The The present invention also relates to an electro-optical device with such a color filter substrate. The present invention further relates to electronic devices, such as a portable Telephone, a portable information terminal or other electronic devices, configured for use with such an electro-optical device are.

It is common practice that paint by a liquid crystal device, an organic EL device or other such electro-optical Device is displayed. Inside such an electro-optical Device is a color filter substrate included. This color filter substrate becomes for example by formation of three coloring elements in R (red), G (green) and B (blue) formed on a base made of a transparent Glass is made so that they form a predetermined pattern.

The The following three types of liquid crystal devices are known. The first is a so-called reflective liquid crystal device, in the sunlight, artificial Light or other such external light inside the Device is reflected and a picture using the reflected Light is displayed. The second is a so-called transmissive Liquid crystal device, in an image is displayed using light from a cold cathode tube, an LED (light emitting diode) or other such light source is radiated and penetrates into the interior of the liquid crystal device. The third is a semi-transmissive / reflective liquid crystal device which has both reflective and transmissive functions. A display point area in this semi-transmissive / reflective liquid crystal device with a reflective section with a reflective function and provided a transmissive section with a transmissive function, so that it is possible is as desired between a reflective display mode and a transmissive display mode.

A well-known example of the above-described semi-transmissive / reflective liquid crystal device is a device in which each area corresponding to a display point is separated by a bank and a coloring element in this separated area using a droplet deposition technology or, more particularly, an ink jet technology is formed. Such a liquid crystal device is on page 4, 1 of the Japanese Patent Application Laid-Open No. 2003-121635 described.

In the liquid crystal device used in the Japanese Patent Application Laid-Open No. 2003-121635 is disclosed, the bank is provided to separate the coloring elements. In other words, no special barrier wall is provided between the reflective portion and the transmissive portion. Therefore, coloring elements of the same color materials are provided in the reflective portion and the transmissive portion. Recently, however, there has been a demand for modifying the properties of the coloring elements in the reflective portion and the transmissive portion. For example, there is a need for a separate choice of the state of the coloring elements in the reflective portion and the state of the coloring elements in the transmissive portion to make the color display uniform between the reflective display mode and the transmissive display mode.

In spite of These requirements become the same color materials in conventional liquid crystal devices for the coloring Elements between the reflective section and the transmissive Section used. Therefore, it is difficult to find a variation in that Condition of coloring Elements between the reflective section mode and the transmissive Reach section mode.

in view of of the predicted is for the person skilled in the art from this disclosure apparent that a Need for an improved color filter substrate and method for producing a color filter substrate, the previously solve problems described in the prior art. These The invention relates to this need as well as to other requirements, the for those skilled in the art will be apparent from this disclosure.

US 2003 / 0063239A discloses a color filter substrate in which each pixel is surrounded by a first bank. Inside the first bank, there is provided a reflective surface in which a reflective film is disposed, and a transmissive surface in which no reflective film is located. The reflective surface is formed around the boundary of the pixel and the transmissive surface is surrounded by the reflective surface. A second bank is formed on the reflective film at the boundary between the reflective surface and the transmissive surface. Thus, the second bank is completely formed within the first bank and surrounds the transmissive surface.

An object of the present invention is to provide a color filter substrate in which the attributes of coloring elements or other elements in the reflective and transmissive sections are freely set at different values and to provide a method of manufacturing such a color filter substrate, an electro-optical device having such a color filter substrate, and an electronic device having such an electro-optical device.

According to a first aspect of the present invention, there is provided a color filter substrate comprising:
a substrate;
multiple display points on the substrate;
first strip-shaped benches for separating the display dots into different colors;
second strip-shaped banks, each of the second banks intersecting a plurality of the first banks;
a reflective film partially provided on the substrate such that a reflective portion and a transmissive portion are formed in each of the display dots, the reflective film being provided only within and covering regions bounded by the first and second banks and the second banks are provided between the reflective portions and the transmissive portions; and
coloring elements provided in areas divided by the first banks and the second banks.

According to another aspect of the present invention, there is provided a method of manufacturing a color filter substrate comprising the steps of:
Providing a substrate;
Forming first and second strip-shaped banks on the substrate, the first banks serving to separate display dots into different colors, and each of the second banks intersecting a plurality of the first banks;
partially forming a reflective film such that a reflective portion and a transmissive portion are formed in each display point, the reflective film being formed only within and covering regions bounded by the first and second banks; and
Forming coloring elements on the areas divided by the first and second banks by droplet deposition.

These and other objects, features, aspects and advantages of the present invention Invention will be for the skilled person will be apparent from the following detailed description, in conjunction with the accompanying drawings a preferred embodiment of the present invention.

It will now be embodiments the present invention only by way of another example and described with reference to the accompanying drawings, of which:

1 (a) is a plan view showing a single pixel area of a color filter substrate according to the first embodiment of the present invention;

1 (b) a cross-sectional view of the individual pixel area of the color filter substrate, which in 1 (a) is shown, according to the first embodiment of the present invention;

2 FIG. 4 is a process diagram illustrating one embodiment of a method of manufacturing the color filter substrate in FIG 1 according to the first embodiment of the present invention;

3 is a diagram showing the steps for producing a color filter substrate according to the process diagram in 2 according to the first embodiment of the present invention;

4 FIG. 12 is a diagram showing the steps for producing a color filter substrate according to the first embodiment of the present invention, as shown in FIG 3 shows;

5 FIG. 12 is a diagram showing the steps for producing a color filter substrate according to the first embodiment of the present invention, as shown in FIG 4 shows;

6 (a) Fig. 10 is a plan view showing a single pixel area of an element-side substrate in a liquid crystal device which is an example of an electro-optical device according to the present invention;

6 (b) a cross-sectional view along the line VIb-VIb in 6 (a) is;

7 Fig. 12 is a perspective view showing the liquid crystal device which is an embodiment of the electro-optical device according to the present invention;

8th FIG. 12 is a diagram showing an enlarged view of the cross-sectional structure of a display dot area in the liquid crystal device in FIG 7 shows;

9 FIG. 15 is a perspective view showing a switching component used in the liquid crystal device of FIG 7 is used;

10 is a diagram showing an example of the arrangement pattern for the coloring elements R, G and B, which on the color filter substrate in 1 are formed; (a) is a striped pattern; (b) is a mosaic pattern; (c) is a delta pattern;

11 (a) is a plan view showing a single pixel area of a color filter substrate according to the second embodiment of the present invention;

11 (b) a cross-sectional view of the individual pixel area of the color filter substrate, which in 11 (a) is shown, according to the second embodiment of the present invention;

12 FIG. 4 is a process diagram illustrating one embodiment of a method of manufacturing the color filter substrate in FIG 11 according to the second embodiment of the present invention;

13 is a diagram showing the steps for producing a color filter substrate according to the process diagram in 12 according to the second embodiment of the present invention;

14 FIG. 15 is a diagram showing the steps for producing a color filter substrate according to the second embodiment of the present invention, continuing from FIG 13 shows;

15 FIG. 15 is a diagram showing the steps for producing a color filter substrate according to the second embodiment of the present invention, continuing from FIG 14 shows;

16 FIG. 15 is a process diagram illustrating a method of manufacturing the color filter substrate in FIG 1 according to the third embodiment of the present invention;

17 is a diagram showing the steps for producing a color filter substrate according to the process diagram in 16 according to the third embodiment of the present invention;

18 FIG. 12 is a diagram showing the steps for producing a color filter substrate according to the third embodiment of the present invention, as shown in FIG 17 shows;

19 FIG. 12 is a diagram showing the steps for producing a color filter substrate according to the third embodiment of the present invention, as shown in FIG 18 shows;

20 (a) is a plan view showing a single pixel area of a color filter substrate according to the fourth aspect of the present invention;

20 (b) a cross-sectional view of the individual pixel area of the color filter substrate, which in 20 (a) is shown, according to the fourth embodiment of the present invention;

21 Fig. 12 is a perspective view showing an ink-jet head used in the method of manufacturing a color filter substrate according to the present invention;

22 is an exploded perspective view showing the internal structure of the ink jet head in FIG 21 shows;

23 a cross-sectional view taken along the line XXIII-XXIII in 22 is;

24 Fig. 10 is a block diagram showing the electronic device according to the fifth embodiment of the present invention;

25 Fig. 12 is a perspective view showing a portable telephone which is the electronic device according to the fifth embodiment of the present invention; and

26 Fig. 16 is a perspective view showing a digital camera which is the electronic device according to the fifth embodiment of the present invention.

One Color filter substrate according to the present invention Invention contains a substrate, a first bank for separating a plurality of display dots on the substrate, a reflective film partially on the substrate is provided so that a reflective section and a transmissive Section are formed in each of the display points, a second Bank, which is between the reflective section and the transmissive Section is formed; and coloring Elements in surfaces are provided by the first bank and the second bank are separated.

Of the reflective section is an area in which the reflective film is deposited. Likewise, the transmissive Section an area in the display point where the reflective film is not provided is where only a thin one Part of the reflective film is provided or the like. Light rays coming from the front of the color filter substrate, are reflected back to the front by the reflective section. Likewise, light rays coming from the back of the color filter substrate come through through the transmissive section to the front. The coloring Elements contain for example the three colors R (red), G (green) and B (blue) or the three colors C (cyan), M (magenta), and Y (yellow).

light rays with a predetermined wavelength are selectively transmitted when the reflected light rays or transmitted light rays pass through the coloring elements.

The coloring elements are provided in areas passing through the first bank and the second Bank are shared. Since the second bank is provided at the boundary between the reflective portion and the transmissive portion, the coloring elements between the reflective portion and the transmissive portion are divided by the second bank. The attributes of the coloring elements or other elements, such as the reflective film, can thus be freely varied between the reflective portion and the transmissive portion.

In the color filter substrate configured as described above become the coloring Elements preferably using a droplet cut or in particular an inkjet technique formed. Because the reflective section and the transmissive portion in the present invention the second bank is divided, the coloring elements between the reflective section and the transmissive each with its own Attributes formed. The inkjet technique used here is a technique by which the material of the coloring elements of a Nozzle in Shape of ink droplets delivered and desired Spots sprayed becomes. Possible Ink deposition methods that can be used include a method by which ink is reduced by changing the internal capacity of the nozzle Use of a piezoelectric element that is the electrical Line vibrates accordingly, is discharged, a method in the ink deposit is achieved by the ink in the Nozzle one Subjected to thermal expansion or other droplet deposition techniques. When the inkjet technique is used, the coloring elements can be inexpensive and formed with a simpler procedure compared to the case in which the coloring Elements with conventional Processes such as the photolithographic techniques are formed.

In the color filter substrate configured as described above have two adjacent coloring Elements shared by the second bank are preferably the same Color, but different light transmittances. The brightness and color depth can thereby easily between the light rays passing through the reflective Section reflected, and the rays of light through the transmissive section to be let through.

When Alternative have in the color filter substrate, as previously described is configured, two adjacent coloring elements by the second bank are divided, preferably the same color, but different film thicknesses. The brightness and color depth can thereby lightly between the rays of light passing through the reflective section be reflected, and the rays of light through the transmissive Section to be let through.

When Alternative have in the color filter substrate, as previously described is configured, two adjacent coloring elements by the second bank are divided, preferably different colors and different film thicknesses. The brightness and color depth can thereby lightly between the rays of light passing through the reflective section be reflected, and the rays of light through the transmissive Section to be let through.

The Color filter substrate configured as described above preferably has a resin layer between the substrate and the reflective film in the surfaces provided shared by the second bank. The Resin layer is removed by droplet deposition formed and has an irregular pattern on their surface. According to this Configuration becomes an irregular pattern also in the reflective film corresponding to the irregular section formed in the surface the resin layer is formed. As a result of this irregular section in the reflective film, reflected light rays are scattered and the quality the reflective display is improved. When the resin layer on This way, the irregular section becomes light in the resin layer formed when the second bank between the reflective section and the transmissive section, as in the present invention, is provided.

In the color filter substrate having a resin layer becomes the irregular portion preferably by forming the resin layer by dispensing a material formed, the globule contains. According to this Configuration can the resin layer and the irregular section simultaneously formed by a single droplet deposition become.

In the color filter substrate having the resin layer becomes the irregular portion preferably by forming the resin layer with droplet deposition and forming formed by folding on the resin layer by baking. The resin, that poured into droplets is generally dried by baking. An irregular section can on the surface the resin layer are formed by applying this baking treatment. In this case, the irregular section be stably formed when the surface on which the resin layer is discharged, separated by the second bank.

In the color filter substrate according to the present invention, the reflective film is preferably formed by droplet deposition in areas separated by the second bank. In common practice, the reflective film is often formed by photolithography. However, the reflective film can easily pass through only in the reflective section Droplet deposition can be formed when the reflective portion and the transmissive portion, as in the present invention, are separated by the second bank.

In the color filter substrate in which the reflective film is deposited by droplet deposition is formed, the reflective film is preferably by delivery of a Materials formed, the beads contains. An irregular section can thereby on the surface of the reflective film formed by the reflective film itself even if no resin layer is below the reflective one Films is available.

One A method for producing a color filter substrate according to the present invention Invention contains providing a substrate; Make up first and second banks the substrate, the first bank separating display points; partial Form a reflective film on surfaces through the first and second benches are shared, leaving a reflective section and a transmissive Section are formed in each display point; and making dyeing Elements on surfaces, which are divided by the first and second banks, by potty separation. According to this Manufacturing process can be a color filter substrate with the previously described configuration reliably produced.

The A method for producing a color filter substrate according to the present invention Invention contains preferably forming a resin layer on the substrate such that the resin layer has an irregular section on its surface having. In the formation of the first and second benches will be the first and second benches formed simultaneously after the formation of the resin layer. The reflective Film is made by droplet deposition formed after the formation of the first and second banks. The coloring Elements are formed after the formation of the reflective film.

According to the procedure for producing a color filter substrate having this configuration can they Steps are simplified because the first and second banks in one single banking step are formed. Also because the coloring Elements by droplet deposition be formed and the reflective film as well by droplet deposition can be formed The steps are made even more simpler than when using photolithography be formed.

When Alternative contains the method for producing a color filter substrate according to the present invention Invention preferably the formation of a resin layer on the substrate after the formation of the first and second banks, so that the resin layer has a irregular section on its surface. In the formation of the first and second banks, the first and second banks become Benches made at the same time. The reflective film is deposited by droplet deposition Formation of the resin layer formed. The coloring elements become after formed the formation of the reflective film.

According to the procedure for producing a color filter substrate having this configuration can they Steps are simplified because the first and second banks in one single banking step are formed. Also because the coloring Elements by droplet deposition and the reflective film and the resin layer are formed as well both by droplet deposition can be formed The steps are made even more simpler than when using photolithography be formed.

When Alternative contains the method for producing a color filter substrate according to the present invention Invention preferably the formation of a resin layer on the substrate, such that the resin layer has an irregular portion on its surface. The reflective film is formed after the formation of the resin layer. In the formation of the first and second banks, the first and second banks become Benches at the same time formed after the formation of the reflective film. The coloring Elements are formed after the formation of the first and second banks.

Preferably contains in the process for producing a color filter substrate according to the present invention Invention the formation of the first and second benches the formation of a thermosetting, light-blocking film layer having a uniform thickness; the formation of a photosensitive, ink-repellent layer on the light-blocking Film layer with uniform Thickness; and exposing and developing the light-blocking film layer. According to this Configuration can be an ink-repellent bench in a shorter time and be formed at a lower cost with simple steps.

The The present invention can be used as an electro-optical device with a color filter substrate according to the present invention Invention executed be, wherein a layer of electro-optical material on the Color filter substrate is provided. Examples of such electro-optical Device include liquid crystal devices, organic EL devices, plasma display devices and various other devices.

The present invention can be embodied as an electronic device having the above-described electro-optical device according to the present invention, and a control device for controlling the operation of the electro-optical device. Examples of a sol Electronic devices include portable telephones, portable information terminals, PDAs (Personal Digital Assistants) and various other devices.

Selected embodiments The present invention will now be described with reference to the drawings explained. For the It will be apparent to those skilled in the art from this disclosure that the following Descriptions of the embodiments of serve the present invention by way of illustration only and the Invention, which is defined by the appended claims, and their equivalents not restrict should.

FIRST EMBODIMENT

COLOR FILTER SUBSTRATE AND ELECTRO-OPTICAL CONTRAPTION

 One example for the color filter substrate according to the present invention Invention and an electro-optical device in which the color filter substrate will now be described. In the following description is a semitransmissive / reflective liquid crystal device, the a liquid crystal device with active matrix, which is a TFD (thin-film diode) as a switching component with two connections used as an example. The present invention is Naturally not on this embodiment limited.

With reference to 7 contains a liquid crystal device 1 , which is an example of an electro-optical device, a liquid crystal panel 2 and a lighting device 3 , The liquid crystal panel 2 is by binding a first substrate 4a to a second substrate 4b with an annular sealing element 6 educated. The first substrate 4a is a color filter substrate on which a color filter is formed. The second substrate 4b is an element substrate on which a TFD (thin film detector) element is formed. 8th Fig. 10 is an enlarged view of one of the display punk sections D in the liquid crystal panel 2 from 7 , As in 8th is a gap, a so-called cell gap G, between the first substrate 4a and the second substrate 4b formed and is by a spacer 7 maintained. The liquid crystal fills the cell gap G to form a liquid crystal layer B.

1 (a) shows a two-dimensional structure of a pixel area of the first substrate 4a , viewed from the direction of the arrow A in FIG 7 , This viewing direction is the same as the direction in which the viewer sees the display. 1 (b) is a cross-sectional view of the first substrate 4a , viewed along the line Ib-Ib, in 1 (a) is shown. In 1 (a) and 1 (b) contains the first substrate 4a a first substrate element (rear substrate) 9a , which consists of a translucent glass, translucent plastic or other translucent material. A resin layer 11 is on the liquid crystal side of the first substrate element 9a made, over which a reflective film 12 is formed. The resin layer 11 can be formed for example by photolithography. The reflective film 12 can also be formed by an inkjet or droplet deposition technology.

Likewise are in 1 (a) several strip-shaped first benches 15a , which extend horizontally in the diagram, on the resin layer 11 provided. Likewise, there are several strip-shaped second banks 15b extending vertically in the diagram, orthogonal to the first banks 15a provided. This will make latticed benches through the first benches 15a and the second benches 15b and several of the square areas enclosed by these banks become a dot-matrix configuration on the base 9a educated. As in 1 (b) is shown contains the second bank 15b a light-blocking element 13 and an ink-repellent layer 14 on the light-blocking element 13 lies. The first benches 15a similarly have a two-layered structure of a light-blocking element 13 and an ink-repellent layer 14 , The light-blocking element 13 For example, it may be formed of a black thermosetting resin. Likewise, the ink-repellent layer becomes 14 formed of a photosensitive resin having the quality of removing the material of the coloring elements. Such coloring elements are delivered by an inkjet technology, as described below.

In 1 (a) become coloring elements 16 in the square areas formed by the first benches 15a and the second benches 15b are enclosed. The coloring elements 16 have three colors, R, G and B, one of which is formed in a single area, that of the benches 15 is enclosed. An R coloring element is referred to as 16r or 16r ' denotes a G coloring element is called 16g or 16g ' and a B coloring element is referred to as 16b or 16b ' designated as in 1 (a) is shown.

In 1 (b) becomes a coating layer 17 on the benches 15a and 15b formed and the coloring elements 16 , the strip-shaped transparent electrodes 18a be on the coating layer 17 formed, and an orientation film 19a is further on the electrodes 18a educated. The orientation film 19a is subjected to an orientation treatment such as a rubbing treatment, whereby the orientation of the liquid crystal molecules near the orientation film 19a is set. Likewise will a polarizing plate 21a on the outside of the first base 9a attached by gluing or the like, as in 7 is shown. A single strip-shaped transparent electrode 18a extends perpendicular to the paper plane of 1 (b) and appropriate intervals are between the adjacent electrodes 18a provided. The multiple electrodes 18a are thereby formed into a strip configuration, as can be seen from the direction of arrow A.

In 8th are the first substrate 4a and the second substrate 4b each other across the liquid crystal layer 8th facing. 6 (b) shows the cross-sectional view of the second substrate 4b along the line VIb-VIb, which in 6 (a) is shown. In 6 (b) contains the second substrate 4b a second substrate element (front substrate) 9b , which consists of a translucent glass, plastic or other material. One line wiring 22 that has a linear shape, TFD elements 23 , which are active elements, and point electrodes (pixel electrodes) 18b that are transparent and the orientation film 19b are all on a liquid crystal side surface of the second substrate 4b educated. The orientation film 19b is subjected to an orientation treatment such as rubbing to bring the liquid crystal molecules near the orientation film 19b to orient. The rubbing direction of the surface of the orientation film 19a that the first substrate 4a in 8th and that of the surface of the orientation film 19b that is the second substrate 14b facing each other, crossing each other at an appropriate angle, depending on the crystalline properties. In 7 becomes the polarizing plate 21b to the outer surface of the second substrate element 9b glued or otherwise attached to this.

In 6 (a) becomes the point electrode 18b formed as a substantially square or rectangular shaped dot and with the lead wiring 22 through the TFD element 23 connected. The transparent electrode 18a formed in stripes and on the side of the first substrate 4a is arranged in is 6 (a) shown in dashed lines for reference. The area where the point electrode 18b and the transparent electrode 18a A display point region D corresponds to one of the three colors R, G, and B. In the present embodiment of the color display, three display dot regions D corresponding to the three colors R, G, and B are formed , a pixel.

In 8th are on the reflective film 12 openings 24 for each display point region D is formed to pass the light. These openings 24 are formed so that the reflective film 12 Let light through. As an alternative to providing the openings 24 can the thickness of the reflective film 12 be reduced to the reflective film 12 to give both light-reflective and light transmissive functions. The area where the reflective film 12 is provided, is a reflective portion R, The area that covers the openings 24 corresponds, is a transmissive section T.

In 1 (a) separate the first benches 15a the display points D in the vertical direction of the diagram. The second benches 15b separate the reflective portion R and the transmissive portion T horizontally in the diagram.

In 1 (b) is an irregular pattern on the surface of the resin layer 11 formed in the reflective section R passing through the second benches 15b is separated and another irregular pattern corresponding to the first irregular pattern is in the surface of the reflective film 12 formed on the resin layer 11 is layered. These irregular patterns are formed to be random in a plane as viewed from the direction of arrow A. The light that is on the reflective film 12 blasted is scattered and reflected due to these irregular surfaces.

In 1 (a) For example, a single display point D has a transmissive portion T at the center and reflective portions R at both sides. Coloring elements 16r ' . 16g ' and 16b ' are formed in the transmissive section T and coloring elements 16r . 16g and 16b are formed in the reflective portion R. The coloring element 16r and the coloring element 16r ' consist of the same color material, but the film thicknesses have the ratio 16r < 16r ' , as in 1 (b) is shown. In other words, the thickness of the coloring element 16r ' in the transmissive portion T is larger than the thickness of the coloring element 16r in the reflective portion R. Likewise, the coloring element is composed 16g and the coloring element 16g ' from the same color material, but the film thicknesses have the ratio 16g < 16g ' , Furthermore, there is the coloring element 16b and the coloring element 16b ' also from the same color material, but the film thicknesses have the ratio 16b < 16b ' ,

In the present embodiment, the quality of the coloring elements varies 16 between the reflective portion R and the transmissive portion T within a display point D, but the hue itself is the same in both. for example, the display point D is that of the coloring elements 16r and 16r ' corresponds, R (red), the display point D, the coloring elements 16g and 16g ' is equal to G (green), and the display point D is that of the coloring elements 16b and 16b ' corresponds, B is (blue). In the present embodiment, the colors R, G and B are in a striped form Pattern in 10 (a) aligned, and the color filter is made of these coloring elements 16 configured. This stripe-shaped pattern herein refers to a pattern in which coloring elements of the same color are aligned in a line in the longitudinal directions and lines of different colors are arranged in the width direction.

The coloring elements may alternatively be arranged in other patterns, such as in a mosaic pattern used in 10 (b) is shown, or in a delta pattern, in 10 (c) is shown. In the mosaic pattern, the three colors (R, G, and B in the example of FIG 20 (b) ) are repeated in the same order in both the longitudinal and width directions. In the delta pattern, each of the three colors is arranged at one end of a triangle, and the three colors are also repeated in the same order in the width direction.

The TFD element 23 , this in 6 (a) is shown by connecting a first TFD element 23 and a second TFD element 23b formed in series, as in 9 is shown. The TFD element 23 is formed in the following manner, for example. First, a first layer 22a the line wiring 22 and a first metal 26 of the TFD element 23 formed with TaW (tantalum tungsten). Second, a second layer 22b the line wiring 22 and an insulating membrane 27 of the TFD element 23 formed by an anodization process. Third, a third shift 22c the line wiring 22 and a second metal 28 of the TFD element 23 formed for example with Cr (chromium).

The second metal 28 of the first TFD element 23a extends. from the third layer 22c the line wiring 22 , The point electrode 18b is formed so that it matches the tip of the second metal 28 of the second TFD element 23b overlaps. When an electrical signal from the line wiring 22 in the direction to the point electrode 18b flows, the electrical signal would pass through the first TFD element 23a , from the second metal 28 to the insulating film 27 and thus to the first metal 26 flow. On the other hand, in the second TFD element 23b the electrical signal from the first metal 26 to the insulating membrane 27 and then to the second metal 28 flow.

In other words, a pair of electrically opposed TFD elements are in series between the first TFD element 23a and the second TFD element 23b connected.

It it is known that a TFD element in such a construction, the general as a back-to-back construction provides more stable properties than a TFD element, which is formed only with a TFD element.

In 7 contains the second substrate 4b an overhanging section 29 that's about the first substrate 4a projects. A wiring 31 and a connection 32 be on a surface of the overhanging section 29 formed, which is the first substrate 4a is facing. A driver IC 33a and two driver ICs 33b are installed by an ACF (anisotropic conductive film), not shown, in a region where the wiring 31 and the connections 32 exist together.

The wiring 31 and the connections 32 be on the second substrate 4b simultaneously with the formation of the wiring 22 and the point electrodes 18b educated. The cable wiring 22 extends over the overhanging section 29 , it will be a wiring 31 and gets to the driver IC 33a connected. These are spherical or cylindrical conductive elements (not shown in the figures), which in the sealing element 6 be mixed, which is the first substrate 4a and the second substrate 4b stick together. The transparent electrodes 18a that over the first substrate 4a are formed extend over the first substrate 4a to the location of the sealing element 6 , and then pass through the conductive elements to the wiring 31 on the second substrate 4b connected. The transparent electrodes 18a that are on the first substrate 4a Thus, contact the driver IC 33b connected, located on the second substrate 4b located.

In 7 is a lighting device 3 the outer surface of the first substrate 4a facing bereitge provides, which is a component of the liquid crystal panel 2 is. The lighting device 3 contains a light guide 36 which is a square plate and is made of, for example, a transparent plastic; and LEDs 37 which are point light sources. A light reflective layer (not shown in the figures) may additionally on the surface of the light guide 36 be installed, that of the liquid crystal panel 2 is facing. A light diffusion layer (not shown in the figures) may also be on the surface of the light guide 36 be installed, that of the liquid crystal panel 2 is facing. In addition, a prism layer (not shown in the figures) may also be installed over the light diffusion layer. Although three LEDs are used in the present embodiment, only one, two or more than three LEDs may be used. A line light source, such as a cold cathode tube or other point light sources, may also be used instead of the LED.

It follows an explanation with respect to a liquid crystal device, which is arranged as described above.

When external light of sufficient brightness is available, external light such as sunlight or room light becomes inside the liquid crystal panel 2 through the second substrate 4b recorded as indicated by an arrow F in 8th is shown. This external light F, after passing through the liquid crystal layer 8th gone, from the reflective film 12 reflected and to the liquid crystal layer 8th directed. On the other hand, when the external light is insufficient, the LEDs are lit. 37 the lighting device 3 , in the 7 is shown on. Here is the light from the LEDs 37 , which is point source light, into the inside of the light guide 36 through a light entry surface 26a of the light guide 36 guided and then emitted as surface light from the surface of the liquid crystal panel 2 is facing, the radiation surface Lichtaus 36b is. As indicated by an arrow G in 8th is shown, light from the entire light emitting surface 36b now through the openings 24 that in the light-reflective film 12 are formed as area source light in contrast to point source light to the liquid crystal layer 8th directed.

While light to the liquid crystal 8th is routed in the foregoing manner, control the driver ICs 33a and 33b in 7 the liquid crystal panel 2 , For example, a scanning signal becomes the line wiring 22 while a data signal, for example, simultaneously to the transparent electrode 18a is directed. If here the TFD element 23 (please refer 6 (a) ) associated with a particular display point assumes the selected state (that is, the "ON" state) in response to a voltage differential between the strobe signal and the data signal, an image signal is written to the liquid crystal capacitance within the display point. If after that the particular TFD element 23 assumes the non-selected state (that is, the "OFF" state), this image signal is stored in the display point and drives the liquid crystal 308 within the display point.

As can be seen, the liquid crystal molecules of the liquid crystal layer 8th controlled for each display point. That is, light passing through the liquid crystal layer 8th every display point D goes, is modulated. When the thus modulated light passes through the polarizing plate 21b goes, which is on the side of the second substrate 4 in 7 are characters, numbers, patterns and other images in the effective display region of the liquid crystal panel 2 displayed. A display that uses external light, that of the reflective film 12 is reflected in the 8th is shown, the display is in the reflective display mode. A display, the light from the lighting device 3 used, the display is in transmissive display mode. In the present embodiment, the reflective display mode and the transmissive display mode may be used as desired by the user or automatically selected to suit the environment.

In the present embodiment, the second bank is 15b between the reflective portion R and the transmissive portion T in a display point D as shown in FIG 1 (a) is shown. The coloring elements 16r . 16g and 16b and the coloring elements 16r ' . 16g ' and 16b ' on each side of the second bank 15b differ in the number of properties. In particular, in the present embodiment, the coloring elements 16 and 16 ' from the same color material, but are set up so that the film thicknesses the ratio 16r < 16r ' . 16g < 16g ' and 16b < 16b ' have, as in 1 (b) is shown. In other words, the films of the coloring elements 16 are thick in the transmissive section T and thin in the reflective section R.

Thus, a bright display is possible during the reflective display mode, which is the reflective film 12 is used, and a full-color display is possible in the transmissive display mode, which has the openings 24 of the reflective film 12 used. Further, therefore, a uniform display can be maintained both when using the reflective display mode and when using the transmissive display.

Since the thicknesses of the color film are adjusted so that the ratio 16r < 16r ' . 16g < 16g ' and 16b < 16b ' is satisfied, it can be guaranteed that the reflected light is bright and the color of the transmitted light is strong. In this case, the brightness of the reflected light and the color saturation of the transmitted light are determined by the difference in the film thickness, for example ( 16r ' - 16r ). This difference is preferably set to an appropriate value for each color R, G and B. The color matching of the color display can thus be set at a desired vote.

In the present embodiment, the coloring elements 16 from 1 formed by photolithography or ink jets. In the present embodiment, however, in which the reflective portion R and the transmissive portion T pass through the second bank 15b Separate, it is particularly useful to use the inkjet. The reason is that the optical conditions of the coloring elements 16 between the reflective portion R and the transmissive portion T can be changed by appropriately changing the droplet deposition conditions of ink jet between the reflective portion R and the transmissive portion T.

Furthermore, the coloring elements influence 16 with different optical conditions no longer because the second bank serves as a barrier wall, and therefore no problems, such as the change in the optical conditions of the coloring elements by other coloring elements occur.

MODIFICATION OF THE FIRST EMBODIMENT

In the above with reference to 1 (b) described embodiment had the coloring elements 16r . 16g and 16b in the reflective section R and the coloring elements 16r ' . 16g ' and 16b ' in the transmissive section T the same color material, but different film thicknesses. Alternatively, it is also possible to use colored materials having the same tint but different light transmission rates for the coloring elements 16r . 16g and 16b in the reflective portion R and the coloring elements 16r ' . 16g ' and 16b ' in the transmissive section T to use. For example, it is possible to use color materials that have the same "red tone" but different light transmission rates, the colorant having a higher light transmission rate for the coloring element 16r in the reflective portion R and the coloring material having a lower light transmittance rate for the coloring element 16r ' is used in the transmissive section T.

It is also possible to color elements with different color materials and different film thicknesses for the coloring elements 16r . 16g and 16b in the reflective section R and the coloring elements 16r ' . 16g ' and 16b ' in the transmissive section T to use. For example, the arrangement of the coloring elements 16 be a mosaic pattern, as in 10 (b) is shown, wherein adjacent coloring elements have different thicknesses.

In In the present invention, the present invention has been applied to semi-transmissive-reflective Liquid crystal display devices active matrix type using TFD elements, the switching elements with two connections are, applied. However, the present invention is also in Liquid crystal display devices active matrix type using TFT (thin-film transistors) applicable, which are switching elements with 3 terminals. The present Invention is also in liquid crystal devices applicable to the simple matrix type, which do not use switching elements. The present invention is further in liquid crystal devices of the reflective type applicable. The present invention is the Further applicable to electro-optical devices which are not of the liquid crystal type are, as with organic EL devices, plasma display devices, Electron emission components (field emission displays and surface-conduction Electron-emitter displays) and many others.

PROCESS FOR PRODUCING THE COLOR FILTER SUBSTRATE 4A

The method of manufacturing a color filter substrate according to the present invention will now be described with reference to a case of manufacturing the color filter substrate 4a , this in 1 is shown as an example.

2 shows a method of manufacturing a color filter substrate according to an embodiment of the present invention. In process P1, the material becomes 11 ' for the resin layer 11 which is a photosensitive resin in the present embodiment, uniformly over the substrate 9a applied in 3 (a) is shown. Subsequently, in process P2, the layer of the resin layer material 11 ' exposed and developed to the resin layer 11 to form, as in 3 (b) is shown. At the same time a random jagged pattern over the surface of the resin layer 11 educated. In this way, a resin layer 11 with random surface irregularities on the base 9a educated.

Subsequently, in the following step P3, thermosetting light-blocking material 13 ' applied in a uniform thickness, as in 3 (c) is shown. In step P4 becomes ink-repellent material 14 ' on the layer of light-blocking material 13 ' applied in a uniform thickness, as in 3 (d) is shown. The resin laminate in 3 (d) is exposed to light and developed in the following step P5, and the second benches 15b having a layered structure with the light blocking element 13 and the ink-repellent layer 14 as well as the first benches 15a are formed with the same two-layered structure as in 4 (e) is shown.

Then the reflective film 12 formed by ink jetting in the following step P6, as in 4 (f) is shown. The reflective film 12 For example, by using ink jet technology, by guiding / moving the ink jet head 21 , as in 21 is formed in a planar manner, as shown by the arrows X and Y. The inkjet head 41 has a substantially rectangular housing 42 and several nozzles 43 are at the bottom of the case 42 provided. The nozzles 43 have a small opening with a diameter of about 0.02 to 0.1 mm.

In the present embodiment, the plurality of nozzles 43 provided in two rows and two rows of nozzles 44 . 44 are in the head 41 educated. In every row of nozzles 44 are the nozzles 43 in a straight line at predetermined intervals be Semi asked. Liquid material will line up these nozzles 44 supplied from directions which are represented by arrows H. The thus supplied liquid material is in the form of tiny droplets from the nozzles 43 according to the vibration of the piezoelectric element 58 issued. Although there are two rows of nozzles 44 in this embodiment, the number of nozzle rows can be 44 also be one or three or more.

The inkjet head 41 has, for example, a stainless nozzle plate 46 , a vibrating plate 47 , which is arranged facing the nozzle plate, and a plurality of separating elements 48 for connecting the nozzle plate 46 and the vibration plate 47 , as in 22 is shown. Likewise, there are several recording rooms 49 for receiving the liquid material, and a liquid collection device 51 disposed at a position where the liquid material temporarily accumulates through the partition members 48 between the nozzle plate 46 and the vibration plate 47 Are defined. Further, each of the plurality of receiving chambers 49 and the liquid collection device 51 through a canal 52 connected. Likewise is a feed opening 53 for the liquid material at a suitable location in the vibrating plate 47 formed and a material container 56 is at the feed opening 53 over a pipe 54 connected. Mate rial for a reflective film is in the container 56 stored, and the liquid material M0, from the container 56 is fed into the liquid collection device 51 filled and then over the channel 52 in the receiving chambers 49 filled.

The nozzle plate 46 which is part of the inkjet head 41 is, is with nozzles 43 for spraying the liquid material in jet form from the receiving chambers 49 provided. Several of these nozzles 43 are to form nozzle rows 44 aligned as previously with reference to 21 has been described.

Likewise, the vibrating plate 47 with a pressure element 57 provided to the receiving chambers 49 corresponds to pressure on the liquid material. This pressure element 57 has a piezoelectric element 58 and a pair of electrodes 59a and 50b on both sides of the piezoelectric element 58 , as in 23 is shown.

When current is between the electrodes 59a and 59b flows, deforms the piezoelectric element 58 and protrudes in the direction of arrow J to the outside, reducing the volume of the receiving chamber 49 is enlarged. Therefore, the liquid material M0 flows from the liquid reservoir 51 over the passage 52 with a volume in the receiving chamber 49 that enlarges the volume of the receiving chamber 49 is equivalent.

When the current flow to the piezoelectric element 58 is stopped, sweep the piezoelectric element 58 and the vibration plate 47 back to the original state and the volume of the receiving chamber 49 also returns to its original state. As a result, the pressure exerted on the liquid material increases within the receiving chamber 49 , whereby the liquid material in the form of droplets 61 from the nozzle 43 is ejected. The droplets 61 are stably ejected as minute droplets, regardless of the type of solvent or other ingredients that may be included in the liquid material.

By making the reflective film 12 With the ink jet technology using the above-mentioned ink jet head system, it is possible to remarkably lower the consumption of reflective film material as compared with a case where the reflective film is formed by a conventional patterning technology using photolithography. The manufacturing process is also significantly simplified. As well as the benches 15a and 15b an ink-repellent layer 14 can be prevented, the material of the reflective film 12 at the benches 15a and 15b liable.

If the reflective film 12 , as in 4 (f) is formed by ink jetting, the coloring elements become 16 , in the 4 (g) are shown by ink jetting in the following step 27 formed in 2 is shown. The ink-jet technique used here can be performed by using the ink-jet head 41 be carried out in 10 to 12 shown to form the above-described reflective film 12 is used.

In this case, the material for the coloring elements R, G and B in the material container 56 in 22 stored. Likewise, dedicated ink jet heads are 41 for each of the coloring elements 16 of the three colors R, G and B provided; and the heads 41 are installed in different stages in the production line. Then become coloring elements 16 each color separately with the inkjet heads 41 formed for each color. Depending on the situation, it is also possible to have a supply system for the material of the coloring elements of all three colors in an ink jet head 41 to incorporate, and the coloring elements 16 the three colors only with the one inkjet head 41 leave.

Therefore, if the coloring elements 16 are formed using ink-jet ink-depositing techniques, the consumption of coloring film material is reduced compared to the case where the coloring elements 16 by structuring method of conventional Fotoli thografie are reduced significantly. The steps for the preparation of the coloring elements 16 are also much easier than in photolithography. Because the benches 15a and 15b an ink-repellent layer 14 may contain an adhesion of the material of the coloring elements 16 at the benches 15a and 15b be prevented. Therefore, mixing the colors between the coloring elements 16r . 16g and 16b be prevented.

After the coloring elements 16 were formed by ink jets, as in 4 (g) is shown, a coating layer 17 , as in 5 reading (h) is shown in the subsequent step 28 formed in 2 is shown. Furthermore, strip-shaped electrodes 18a in step 29 , as in 5 (i) is formed by photolithography and etching of ITO (Indium Tin Oxide) or other such transparent conductive material. Further, an orientation film becomes 19a formed in step P10 of polyimide or the like, as in 5 (j) is shown. A color filter substrate 4a is thereby produced as described above.

MODIFICATION OF THE PROCESS FOR PREPARATION A COLOR FILTER SUBSTRATE 4A

In In the present invention, the invention has been applied to manufacturing processes a semi-transmissive-reflective liquid crystal display device of the active matrix type that uses TFD elements that Switching elements with two connections are. However, the invention is also in manufacturing processes of a Liquid crystal display device of the active matrix type applicable, the TFT elements (thin-film transistors) used, which are three-terminal switching elements. The invention is also in manufacturing processes of a liquid crystal device of simple matrix type applicable, which does not use switching elements. The invention is also in the manufacturing process of a liquid crystal device of the reflective type applicable. The invention is further included Production method of a non-liquid crystal type electro-optical device applicable, such as an organic EL device, a plasma display device and many others.

SECOND EMBODIMENT

COLOR FILTER SUBSTRATE 4A ''

11 shows a color filter substrate according to another embodiment of the present invention. This embodiment is different from the previous embodiment described in FIG 1 is shown in the configuration of the resin layer 11 '' , Otherwise, the configuration is the same as that of the color filter substrate 4a the embodiment in 1 , In view of the similarity between the first and second embodiments, the parts of the second embodiment that are identical to the parts of the first embodiment are given the same reference numerals as the parts of the first embodiment. Further, the descriptions of the parts of the second embodiment that are identical to the parts of the first embodiment may be omitted for the sake of brevity. The parts of the second embodiment which are different from the parts of the first embodiment are indicated by two dashes ('').

In the color filter substrate 4a the embodiment in 1 is the resin layer 11 over the entire surface of the base 9a provided and an irregular pattern is applied to portions of the surface of the resin layer 11 formed corresponding to the reflective portion R. In the color filter substrate 4a '' the embodiment, which in 11 is shown, the resin layer 11 '' not over the entire base 9a provided, but the resin layer 11 '' is provided only on the surface corresponding to the reflective portion R. This configuration is preferable when the resin layer 11 '' between the second benches 15b is formed by ink jetting.

METHOD FOR PRODUCING A COLOR FILTER SUBSTRATE 4A ''

A method for producing a color filter substrate 4a '' according to another embodiment of the present invention will now be using the preparation of the color filter substrate 4a '' , this in 11 is shown as an example.

12 shows a method of manufacturing a color filter substrate according to another embodiment of the present invention. First, a thermosetting light-blocking element 13 ' in uniform thickness over the base 9a plotted in step P11 as in 13 (a) is shown. In step P12 then becomes an ink repellent material 14 ' applied to it in uniform thickness, as in 13 (b) is shown. The resin laminate in 13 (b) In the following step P13, light is exposed and developed, and the second banks 15b with a layered structure containing the light-blocking element 13 and the ink-repellent layer 14 as well as the first benches 15a with the same two-layered structure as in 13 (c) is formed.

The resin layer 11 '' is caused by ink jets in the areas that are from the first benches 15a and second benches 15b are enclosed in the following step P14 in 12 formed as in 14 (d) is shown. This ink jet step is accomplished, for example, by dispensing material for the resin layer 11 in the form of droplets from the nozzles 43 performed while the ink jet head 41 who in 21 . 22 and 23 is shown, is guided / moved in a plane. Because the resin layer 11 '' only in the areas formed by the first benches 15a and second benches 15b is enclosed, the amount of material used is significantly reduced.

In this case, a plurality of beads of suitable size are in the material for the resin layer 11 '' included, leaving a random irregular pattern on the surface of the resin layer 11 '' can be formed on the base 9a is formed by the bead-containing resin material from the ink-jet head 41 is delivered. As a resin layer 11 '' with an irregular pattern on the surface then formed in the desired areas by a single ink-jet step, are the steps for producing the color filter substrate 4a '' significantly shortened and the material consumption for the resin layer 11 '' is significantly reduced. A suitable three-dimensional shape, such as spheres, cylinders or the like, is selected as needed for the shape of the beads.

Also, the following method may be used instead of mixing beads into the resin material discharged by ink jetting. In other words, a resin material that does not contain a mixture of beads or the like becomes inked on the base 9a are discharged, then suitable baking conditions are selected for baking the resin material, so that wrinkles are generated on the surface of the baked resin material during baking of the resin material, and a random irregular pattern due to wrinkles can be formed. Even with this method, a resin layer 11 '' with an irregular pattern on the surface in desired areas in a single ink jet step.

Once a resin layer 11 '' based on an irregular pattern 9a formed as described above becomes a reflective film 12 , as in 14 (e) is formed in the following step P15 by ink jetting, as in 12 is shown. The formation of a film with an ink-jet system becomes, for example, by discharging the material for the reflective film 12 in the form of droplets from the nozzles 43 performed while the ink jet head 41 who in 21 . 22 and 23 is shown, is guided / moved within a plane. If the reflective film 12 thus formed by ink-jetting by the ink-jet system, the amount of the reflective film material can be compared with the case where the reflective film 12 structuring methods, such as conventional photolithography, are significantly reduced.

Also, with inkjet technology, the steps for making the reflective film 12 much easier than with photolithography. Because the benches 15a and 15b the ink-repellent layers 14 can also prevent the material of the reflective film 12 at the benches 15 and 15b liable.

Once the reflective film 12 formed by ink-jetting as described above, the coloring elements become 16 by ink jetting in the following step P16 in FIG 12 formed as in 14 (e) is shown. The ink-jet technique used here can be performed by using the ink-jet head 41 be executed in 21 to 23 is shown, which layers to form the resin 11 or the reflective film 12 as described above.

In this case, the material of the coloring elements in the colors R, G and B in the material container 56 in 22 stored. Also, dedicated ink jet heads become 41 for each of the coloring elements 16 prepared in the three colors R, G and B; and the heads 41 are installed in different stages in the production line. Then become coloring elements 16 each color separately with the inkjet heads 41 formed for each color. Depending on the situation, it is also possible to have a supply system for the material of the coloring elements of all three colors in an ink jet head 41 to incorporate, and the coloring elements 16 the three colors only with the one inkjet head 41 leave.

Therefore, if the coloring elements 16 are formed using ink-jet ink-depositing techniques, the consumption of coloring film material is reduced compared to the case where the coloring elements 16 are formed by structuring methods such as conventional photolithography, significantly reduced. The steps for the preparation of the coloring elements 16 are also much easier than in photolithography. Because the benches 15a and 15b an ink-repellent layer 14 may contain an adhesion of the material of the coloring elements 16 at the benches 15a and 15b be prevented. Therefore, mixing the colors between the coloring elements 16r . 16g and 16b be prevented.

After the coloring elements 16 were formed by ink jets, as in 14 (f) is shown, a coating layer 17 , as in 15 (g) is formed, formed in the subsequent step P17, in 12 is shown. Furthermore, strip-shaped electrodes 18a in step P18, as in 15 (h) Darge is represented by photolitho graphite and etching formed from ITO (Indium Tin Oxide) or other such transparent conductive material. Further, an orientation film becomes 19a formed in step P19 of polyimide or the like, as in 15 (i) is shown. A color filter substrate 4a '' is thereby produced as described above.

THIRD EMBODIMENT

PROCESS FOR PRODUCING THE COLOR FILTER SUBSTRATE 4A

The method for producing a color filter substrate according to another embodiment of the present invention will now be described using the preparation of the color filter substrate 4a '' , this in 1 is shown as an example.

16 shows a method of manufacturing a color filter substrate according to an embodiment of the present invention. In process P21 the material becomes 11 '' for the resin layer 11 which is a photosensitive resin in the present embodiment, uniformly over the substrate 9a applied in (17a) is shown. Subsequently, in process P22, the layer of the resin layer material becomes 11 ' exposed and developed to the resin layer 11 to form, as in 17 (b) is shown. At the same time a random jagged pattern over the surface of the resin layer 11 educated. In this way, a resin layer 11 with random surface irregularities on the base 9a educated.

The material 12 '' for a reflective movie 12 becomes in the following step P23 in 16 formed by sputtering into a film, as in 17 (c) is shown, and a resist 39 is applied with a uniform thickness in the following step P24, as in 17 (d) is shown. The resist 39 In the following step P25, light is exposed and developed to form a resist pattern, and then, by etching in step P26, a reflective film is formed 12 formed as in 18 (e) is shown. The reflective film 12 is based on this way 9a educated. At the same time, an irregular pattern, with the irregular pattern on the resin layer 11 in the surface of the reflective film 12 educated.

Subsequently, in the following step P27, thermosetting light-blocking material 13 ' applied in a uniform thickness, as in 18 (f) is shown. In step P28 becomes ink-repellent material 14 ' on the layer of light-blocking material 13 ' applied in a uniform thickness, as in 18 (g) is shown. The resin laminate in 18 (g) In the next step P29 light is exposed and developed, and the second banks 15b having a layered structure with the light blocking element 13 and the ink-repellent layer 14 as well as the first benches 15a are formed with the same two-layered structure as in 18 (h) is shown.

Then the coloring elements 16 , as in 19 (i) is shown by ink jetting in the following step P30 in FIG 16 educated. The inkjet technique used herein can be accomplished using the previously described inkjet head 41 be executed in 21 to 23 is shown.

In this case, the material of the coloring elements in the colors R, G and B in the material container 56 in 22 stored. Also, dedicated ink jet heads become 41 for each of the coloring elements 16 prepared in the three colors R, G and B; and the heads 41 are installed in different stages in the production line. Then become coloring elements 16 each color separately with the inkjet heads 41 formed for each color. Depending on the situation, it is also possible to have a supply system for the material of the coloring elements of all three colors in an ink jet head 41 to incorporate, and the coloring elements 16 the three colors only with the one inkjet head 41 leave.

Therefore, if the coloring elements 16 are formed using ink-jet ink-depositing techniques, the consumption of coloring film material is reduced compared to the case where the coloring elements 16 formed by structuring methods of conventional photolithography, significantly reduced. The steps for the preparation of the coloring elements 16 are also much easier than in photolithography. Because the benches 15a and 15b an ink-repellent layer 14 may contain an adhesion of the material of the coloring elements 16 at the benches 15a and 15b be prevented. Therefore, mixing the colors between the coloring elements 16r . 16g and 16b be prevented.

After the coloring elements 16 were formed by ink jets, as in 19 (i) is shown, a coating layer 17 , as in 19 (j) is formed in the subsequent step P31, which in 16 is shown. Furthermore, strip-shaped electrodes 18a in step P32, as in 19 (k) is formed by photolithography and etching of ITO (Indium Tin Oxide) or other such transparent conductive material. Further, an orientation film becomes 19a formed in step P33 of polyimide or the like, as in 19 (1) is shown. A color filter substrate 4a '' is thereby produced as described above.

FOURTH EMBODIMENT

COLOR FILTER SUBSTRATE 404A

20 shows another embodiment of a color filter substrate according to the present invention. This embodiment is different from the previous embodiment described in FIG 1 is shown, mainly in that no resin layer 11 is provided and the reflective film 12 directly on the base 9a is formed by ink jetting.

The configuration of the color filter substrate 404a in 20 is otherwise the same as that of the color filter substrate 4a in the embodiment of 1 , In the present embodiment, in the material for the reflective film 12 numerous beads 38 is mixed by ink jet or deposition techniques in the reflective portion R, which from the first banks 15a and second benches 15b is enclosed, wherein the material is baked. After baking, the reflective film becomes 12 with an irregular surface pattern that is the globule 38 corresponds, formed in the reflective portion R. According to this embodiment, the resin layer is in 1 not necessary, thus further simplifying the steps and further reducing the cost of the material.

FIFTH Embodiment

ELECTRONIC DEVICE

 It follows an explanation an electronic instrument according to a fifth embodiment of the present invention Invention. This embodiment shows just an example of this invention. Therefore, the scope of the present Invention is not limited to this particular embodiment.

24 shows an electronic instrument according to an embodiment of the present invention. The electronic instrument includes a display information generator 101 , a display information processing circuit 102 , a power supply circuit 103 , a timing generator 104 and a liquid crystal device 105 , The liquid crystal device 105 further includes a liquid crystal panel 107 and a driver circuit 106 ,

The display information generator 101 includes a memory such as a RAM (Random Access Memory), a storage unit such as various disks, and a synchronization circuit for synchronizing the digital image signals and others. The display information generator 101 provides display information, such as image signals, to the display information processing circuit 102 in a predetermined format corresponding to different clock signals from the timing generator 104 be generated.

The display information processing circuit 102 It also includes various known circuits, such as amplifying and inverting circuits, rotation, correction and clamping circuits. The display information processing circuit 102 processes received display information and passes picture signals together with a clock signal CLK to the driver circuit 106 , Here, a scanning line driving circuit (not shown), a data line driving circuit (not shown), a checking circuit, and various other circuits are commonly used as the driving circuit 106 designated. The power supply circuit 103 directs prescribed voltages to all preceding components. The liquid crystal device 105 For example, in the same way as the liquid crystal device 1 be built in 7 is shown.

25 shows a portable telephone set as an example of an electronic instrument according to the embodiment of the present invention. A portable telephone device 120 , as shown, contains a main body 121 and a display unit 122 , A display device 123 with a liquid crystal device or other electro-optical device according to the above-described embodiments, in the display unit 122 arranged so that the display unit 122 various displays relating to telephone connections on the display screen 124 can show.

An antenna 127 is retractable at one end of the display unit 122 attached. A speaker is inside the voice receiving section 128 arranged and a microphone is inside a voice transmission section 129 built-in. The control section that controls the operation of the display device 123 controls is within a main unit 121 or the display unit 122 either integral or separate to the control section that houses the entire portable telephone set 120 controls.

26 shows a digital camera as another example of the electronic instrument according to the present embodiment of the present invention. The digital camera has a liquid crystal device as a viewfinder. A liquid crystal display unit 132 is on a surface of a housing 131 arranged. Here, the liquid crystal display unit serves 132 as a viewfinder that displays the object to be photographed. The liquid crystal display unit 132 For example, a liquid crystal device may be used 1 be in 7 is shown.

The digital camera 130 further includes the front (back of the drawing) of the housing 131 a light receiving unit 133 with optical lenses and a CCD (Charge Coupled Device). If a photographer who has verified an image of the object on the liquid crystal display 132 is displayed on a lock button 134 pushes, the CCD image signal of the respective moment to a memory on a circuit substrate 135 transferred and stored there.

A video signal output terminal 136 and a data communication input / output terminal 137 are on a side surface of the housing 131 arranged. A television monitor 138 is for connection to the video signal output terminal 136 trained as needed. A personal computer 139 is also for connection to the data communication input / output terminal 137 trained as needed. The image signal stored in a memory on the circuit substrate 135 is stored, becomes the television monitor 138 or to the personal computer 139 sent by prescribed operations.

MODIFICATION OF THE ELECTRONIC CONTRAPTION

In addition to a telephone device and a digital camera previously explained is the present one Invention in other electronic instruments, such as personal computers, electronic instruments in the style of a wristwatch, PDAs (staff Digital Assistants), liquid crystal television sets, video recorders viewfinder type or monitor direct view type, car navigation devices, Pagers, electronic notebooks, calculators, word processor devices, Workstations, televisions and POS terminal facilities applicable.

The The present invention has been previously described with reference to preferred embodiments described, but the present invention is not limited to this embodiments limited and it can various improvements within the scope of the present invention be made as described in the claims.

The Color filter substrate according to the present invention Invention is provided for providing a color display function in a liquid crystal device, an organic EL device or other such electro-optical Device used. Likewise, an electro-optical device according to the present Invention preferably as a display section of a portable telephone, a portable information terminal, a PDA or another used such electronic device. Likewise, the electronic device according to the present invention Invention a portable telephone, a portable information terminal, a PDA or other such electronic device, and is especially as an electronic device with a function configured to visually display various data can be.

As used herein, the following directional indications refer to "forward, backward, above, down, vertical, horizontal, below and across "as well as other similar ones Directional information on the directions of a device, with the present Invention is equipped. Therefore, these terms should be used for Description of the invention used, understood relative to a device which is equipped with the present invention.

Of the Term "configured", the description here a component, portion or part of a device used contains hardware and / or software required for execution the desired Function is constructed and / or programmed.

Further should terms that as "means plus function "in the claims expressed are, contain any structure necessary to carry out the function of this part of the present invention can be used.

Of the Term of extent, such as "essentially," "about," and "approximately," as used herein, means a reasonable degree of deviation of the modified term, so that the end result is not significant changed becomes. For example, you can these terms are constructed so that they deviate from at least ± 5% of the modified term, if that deviation is the Meaning of the word that modifies it, does not negate it.

This application claims priority over the Japanese Patent Application No. 2003-318446 ,

While only selected embodiments have been chosen to illustrate the present invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention, which is defined in the appended claims. Furthermore, the foregoing descriptions of the embodiments according to the present invention are provided for the purpose of illustration only, and not for the purpose of limiting the invention, which is defined by the appended claims and their equivalents. Consequently the scope of the invention is not limited to the disclosed embodiments.

Claims (16)

A color filter substrate comprising: a substrate ( 9a ); multiple display points on the substrate; several first strip-shaped benches ( 15a ) for separating the display dots into different colors; several second strip-shaped benches ( 15b ); a reflective film ( 12 ) partially provided on the substrate such that a reflective portion and a transmissive portion are formed in each of the display dots; and coloring elements ( 16 ) provided in areas divided by the first banks and the second banks, characterized in that each of the plurality of second banks intersects a plurality of the first banks, and that the reflective film is provided only within regions and covers them, which are bounded by the first and second banks, and the second banks are provided between the reflective sections and the transmissive sections. A color filter substrate according to claim 1, wherein two adjacent ones coloring Elements shared by a second bank are the same color but different permeability rates to have. A color filter substrate according to claim 1, wherein two adjacent ones coloring Elements that are shared by a second bank, the same color material but have different thicknesses. A color filter substrate according to claim 1, wherein two adjacent ones coloring Elements shared by a second bank, different Have colors and different film thicknesses. A color filter substrate according to claim 1, further comprising a resin layer ( 11 ) provided between the substrate and the reflective film in the areas divided by a second bank, the resin layer having an irregular portion on its surface. A color filter substrate according to claim 5, wherein said irregular portion is formed by the resin layer using a material is formed, the globule contains. A color filter substrate according to claim 5, wherein said irregular portion formed by folding on the resin layer. The color filter substrate of claim 1, wherein the reflective Film in the planes formed, which are divided by the second banks. The color filter substrate of claim 8, wherein the reflective Film is made using a material that pellets contains. A method of making a color filter substrate, comprising the steps of: providing a substrate ( 9a ); Make first ( 15a ) and second ( 15b ) Banks on the substrate, the first banks serving to separate display dots into different colors, and each of the second banks intersecting a plurality of the first banks; partially forming a reflective film ( 12 ), so that a reflective portion and a transmissive portion are formed in each display point, the reflective film being formed by droplet deposition only within and covering regions bounded by the first and second banks; and forming coloring elements ( 16 ) on the areas divided by the first and second banks by droplet deposition. A method for producing a color filter substrate according to claim 10, further comprising forming a resin layer ( 11 ) on the substrate so that the resin layer has an irregular portion on its surface, in the formation of the first and second banks, the simultaneous formation of the first and second banks after the resin layer is formed, forming the reflective film by droplet deposition after formation the first and second banks, and forming the coloring elements after the formation of the reflective film. Method for producing a color filter substrate according to claim 10, further comprising Forming a resin layer on the substrate after the formation of the first and second benches, so that the resin layer has an irregular section on its surface, at Formation of the first and second banks simultaneous education the first and second benches, Form of the reflective film by droplet deposition after the formation of the resin layer; and Making the dyeing Elements after the formation of the reflective film. The method for producing a color filter substrate according to claim 10, further comprising forming a resin layer on the substrate so that the resin layer has an irregular pattern on its surface, forming the reflective film after forming the resin layer, forming the first and second banks simultaneously forming the first and second banks after the formation of the reflective film, forming the coloring elements after the formation of the first and second banks. Method for producing a color filter substrate according to claim 10, wherein forming comprises the first and second banks Form a thermosetting one light-blocking film having a uniform thickness; Forming one Photosensitive ink-repellent layer on the light-blocking Film layer with a uniform Thickness; and Exposing and developing the light-blocking film layer. Electro-optical device comprising: the A color filter substrate according to any one of claims 1 to 9; and a Layer of electro-optical material on the color filter substrate is provided. Electro-optical device comprising: the An electro-optical device according to claim 15, and a control means for controlling the operation of the electro-optical device.